DOSSIER · 13F Holders · Q2 2026

MASTERCARD INCORPORATED

10 institutions still hold MASTERCARD INCORPORATED as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 57636Q904·10 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$498M
visible holders
Holders
10
filers reporting
Concentration
43.74%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

10 institutions reported MASTERCARD INCORPORATED in Q2 2026. IMC-Chicago, LLC leads at 43.7% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$218M424K0.05%Q2 2026
02
Optiver Holding B.V.
CIK 0001859606· Market maker
$193M375K0.05%Q2 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$41M81K0.02%Q2 2026
04
JPMORGAN CHASE & CO
CIK 0000019617
$15M30K0.00%Q2 2026
05
GROUP ONE TRADING LLC
CIK 0000932540
$14M27K0.02%Q2 2026
06
SG Americas Securities, LLC
CIK 0001313360
$8M200K0.01%Q1 2026
07
HRT FINANCIAL LP
CIK 0001475597
$7M12K0.02%Q4 2025
08
Capital Markets Trading UK LLP
CIK 0001719165
$1M2K0.01%Q1 2026
09
Meridian Wealth Management, LLC
CIK 0001697300
$924K2K0.03%Q2 2026
10
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025